the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. Which of the following is an example of client handling equipment?

Correct answer: B

Rationale: Client handling equipment is designed to reduce stress and workload on healthcare professionals who assist, turn, or lift clients, aiming to decrease the risk of injuries from improper lifting techniques. A height-adjustable bed is a prime example of client handling equipment as it allows healthcare providers to raise the client to a suitable working height, facilitating care provision. Choices A, C, and D are not examples of client handling equipment. While a wheelchair, shower chair, and call light are essential in client care settings, they are not intended to aid in handling and lifting clients.

3. A healthcare professional is asked to draw blood in the antecubital (AC) space. Which of the following veins are found in the AC?

Correct answer: D

Rationale: The correct answer is 'All of the above.' All three of these veins - the cephalic, median cubital, and basilic veins - are located in the antecubital space, which is the area in front of the elbow on the arm. The cephalic vein runs along the outer side of the arm, the basilic vein runs along the inner side of the arm, and the median cubital vein is a connecting vein between the cephalic and basilic veins. Therefore, all three veins can be accessed when drawing blood from the antecubital space. Choices A, B, and C are incorrect because each of these veins individually can be found in the antecubital space.

4. In addition to standard precautions, the nurse caring for a patient with rubella would plan to implement what type of precautions?

Correct answer: A

Rationale: Rubella is an illness transmitted by large-particle droplets, so the nurse should implement droplet precautions in addition to standard precautions. Airborne precautions are used for diseases spread through small particles in the air, such as tuberculosis, varicella, and rubeola. Contact precautions are utilized for diseases transmitted by direct contact with the patient or their environment. Universal precautions and body substance isolations are part of the CDC's standard precautions recommendations, but do not specifically address the transmission route of rubella.

5. Which of the following sets of word parts means 'Pain'?

Correct answer: A

Rationale: The correct answer is 'dynia and -algia.' The word parts 'dynia' and '-algia' specifically relate to pain. 'Dynia' refers to pain, and '-algia' also denotes pain. Therefore, when combined, they form the meaning 'pain.' Choices B, C, and D are incorrect because 'a-' and 'an' do not relate to pain, 'ia' and '-ac' do not specifically convey pain, and 'pathy' and '-osis' are not word parts that directly signify pain.

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